11. (be) ……………………………………… they at home yesterday.? 12.Where ………………... you (go) ……………………………………… last night? 13. ………………… he (write) ……………………………………… a letter to his parents a week ago.? 14. ……………... your brother (study) ……………………………………… English in 2008? 15. Mai (not be) ……………………………………… very happy yesterday. 16. We (go) ……………………………………… to the seaside last summer. 17.My mother (not buy) ……………………………………… a lot of food yesterday. 18. Tam and Minh (travel) ……………………………………… to Hue last month 19. He (watch) ……………………………………… TV last night 20. ………………… you (swim) ……………………………………… yesterday? 21. We (take) ……………………………………… part in different activities last week. 22. They (give) ……………………………………… a farewell party next week. 23. We (not go) ……………………………………… to the cinema yesterday. 24. They (not be) ……………………………………… at home yesterday. 25. Where (be) ……………………………… he last night? 26. He (write) ……………………………………… a letter to his parents a week ago. 27. …………………... they (study) ……………………………………… French two days ago? 28. ………………. she (buy) ……………………………………… a bar of soap yesterday? 29. I (see) ……………………………………… that film last night. 30. ………………... the boys (play) ……………………………………… soccer very well last Sunday